This can be used for device tree size reduction similar as
CONFIG_OF_SPL_REMOVE_PROPS option. For tbs2910 board this
shrinks the image size: all -2304.0 bss -16.0 text -2288.0
Signed-off-by: Anatolij Gustschin <ag...@denx.de>
---
dts/Kconfig | 8 ++++++++
scripts/Makefile.lib | 3 ++-
2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/dts/Kconfig b/dts/Kconfig
index 64c98dd723..49224bee93 100644
--- a/dts/Kconfig
+++ b/dts/Kconfig
@@ -311,6 +311,14 @@ config OF_SPL_REMOVE_PROPS
can be discarded. This option defines the list of properties to
discard.
+config OF_REMOVE_PROPS
+ string "List of device tree properties to drop"
+ depends on OF_CONTROL
+ default "interrupt-parent interrupts" if PINCTRL
+ help
+ Some properties are not used by U-Boot and can be discarded.
+ This option defines the list of properties to discard.
+
config SPL_OF_PLATDATA
bool "Generate platform data for use in SPL"
depends on SPL_OF_CONTROL
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 4ea898a421..3b124369ad 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -235,7 +235,8 @@ $(obj)/%.tab.h: $(src)/%.y FORCE
# ===========================================================================
quiet_cmd_shipped = SHIPPED $@
-cmd_shipped = cat $< > $@
+cmd_shipped = cat $< | $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
+ $(addprefix -P ,$(subst $\",,$(CONFIG_OF_REMOVE_PROPS)))
$(obj)/%: $(src)/%_shipped
$(call cmd,shipped)
--
2.17.1
